300.57 Measure of Damages to Property Outside Easement Strip--Overhead Electric Transmission Line--Fact of Damage Contested If you find that the property of the defendant outside the easement strip will be damaged by the presence of the transmission lines or structures, or the use of the easement, the measure of that damage is the difference between the fair cash market value of the defendant's property outside the strip immediately before the structures are in place and its fair cash market value immediately after the structures are in place.